Nuclear Navy

The mental health of nuclear submariners in the United States Navy.

W HiLE conceptual and methodological problems of defining mental health and its presumed opposite, mental illness, have been considerable, some areas of agreement are begin-' ning to appear among the many psychiatrists, psychologists, and social workers active in this field.' More and more, the most useful criterion of mental illness appears not only to be related to the incidence and severity ...

Medicine and the Navy

WÄJcfMtll OF THE NAVY

Following a brief reviev of prior work on wave resistance of bodies of revolution carried out by Havelock and Weinblum a discussion is presented of the approximate relations between the shape of sectional-area curves and of hydrodynamic irregularity distributions. The latter are expressed by polynomials, which lend themI selves to an evaluation of the basic resistance integrals by computing int...

Of the Navy Naval

The invention as disclosed is a system for real time detection of tsunami waves. A tsunami is considered a "shallow water wave"; having a large wavelength compared to the ocean depth. A tsunami can have wavelengths ranging from 100 to 500 km, and amplitudes up to 60 cm (i.e., a pressure signal of up to 1 psi). At least one telecommunications grade optical fiber cable fitted with repeaters spann...

Dynamic and static characterization of compact crack arrest tests of navy and nuclear steels

Recent experimental and computational work by Link and associates has demonstrated that relatively small (W = 150 mm) single edge notched tension specimens (SE(T)) can be used to obtain crack arrest data high in the ductile-to-brittle transition of ferritic structural steel using dynamic computational techniques if a thermal gradient is utilized to aid in the crack arrest. Testing has been repo...